APA (7th ed.) Citation

Hollmann, Walter P. (1975). Guidelines for preparing subnational population projections. United Nations.

Chicago Style (17th ed.) Citation

Hollmann, Walter P. Guidelines for Preparing Subnational Population Projections. [New York]: United Nations, 1975.

MLA (9th ed.) Citation

Hollmann, Walter P. Guidelines for Preparing Subnational Population Projections. United Nations, 1975.